2 Rockwell Automation Publication 1756-TD006E-EN-E - October 2014
1756 ControlLogix Chassis Specifications
Standard ControlLogix Chassis Specifications
The chassis backplane provides a high-speed communication path between modules and distributes power to each of the
modules within the chassis.
Table 1 - Technical Specifications - ControlLogix Standard Chassis (Series B)
Attribute 1756-A4/B 1756-A7/B 1756-A10/B 1756-A13/B 1756-A17/B
Backplane current, chassis/slot max @ 1.2V DC 1.5 A/-
Backplane current, chassis/slot max @ 3.3V DC 4 A/4 A
Backplane current, chassis/slot max @ 5.1V DC 15 A/6 A
Backplane current, chassis/slot max @ 24V DC 2.8 A/2.8 A
Power dissipation, max 4 W 4.5 W 5 W 5.4 W 6 W
Isolation voltage Determined by installed power supply and modules
Slots 4 7 10 13 17
Mounting method Only horizontal
Cabinet size (HxWxD), min 50.8 x 50.8 x 20.3 cm
(20 x 20 x 8 in.)
50.8 x 60.9 x 20.3 cm
(20 x 24 x 8 in.)
50.8 x 76.2 x 20.3 cm
(20 x 30 x 8 in.)
60.9 x 76.2 x 20.3 cm
(24 x 30 x 8 in.)
76.2 x 91.4 x 20.3 cm
(30 x 36 x 8 in.)
Weight, approx 0.75 kg (1.7 lb) 1.10 kg (2.4 lb) 1.45 kg (3.2 lb) 1.90 kg (4.2 lb) 2.20 kg (4.8 lb)
Location Panel
Wire size Functional Earth Ground - 8.3 mm
2
(8 AWG) solid or stranded copper wire rated at 90 °C (194 °F) or greater
Protective Earth Ground - 2.1 mm
2
(14 AWG) solid or stranded copper wire rated at 90 °C (194 °F) or greater
North American temperature code T5
IEC temperature code T4
T5
Enclosure type rating None (open-style)
Table 2 - Technical Specifications - ControlLogix Standard Chassis (Series C)
Attribute 1756-A4/C 1756-A7/C 1756-A10/C 1756-A13/C 1756-A17/C
Backplane current, chassis/slot max @ 1.2V DC 1.5 A/-
Backplane current, chassis/slot max @ 3.3V DC 4 A/4 A
Backplane current, chassis/slot max @ 5.1V DC 15 A/6 A
Backplane current, chassis/slot max @ 24V DC 2.8 A/2.8 A
Power dissipation, max 4 W 4.5 W 5 W 5.4 W 6 W
Isolation voltage Determined by installed power supply and modules
Slots 4 7 10 13 17
Mounting method Only horizontal
Cabinet size (HxWxD), min 50.8 x 50.8 x 20.3 cm
(20 x 20 x 8 in.)
50.8 x 60.9 x 20.3 cm
(20 x 24 x 8 in.)
50.8 x 76.2 x 20.3 cm
(20 x 30 x 8 in.)
60.9 x 76.2 x 20.3 cm
(24 x 30 x 8 in.)
76.2 x 91.4 x 20.3 cm
(30 x 36 x 8 in.)
Weight, approx 0.75 kg (1.7 lb) 1.10 kg (2.4 lb) 1.45 kg (3.2 lb) 1.90 kg (4.2 lb) 2.20 kg (4.8 lb)
Location Panel
Wire size Functional earth ground - 8.3 mm
2
(8 AWG) solid or stranded copper wire rated at 90 °C (194 °F) or greater
Protective earth ground - 2.1 mm
2
(14 AWG) solid or stranded copper wire rated at 90 °C (194 °F) or greater
North American temperature code T4
IEC temperature code T4
Enclosure type rating None (open-style)
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